ubc.cs.JLog.Foundation
Class jPrologServiceBroadcaster

java.lang.Object
  ubc.cs.JLog.Foundation.jPrologServiceBroadcaster

public class jPrologServiceBroadcaster
extends Object

The boadcasting component of the Observer pattern. Interested jPrologServiceListener instances register, and are notified of any broadcast events.

Version:

%I%, %G%

Author:

Glendon Holst

Field Summary

protected Vector	cached_listeners
protected Vector	listeners

Constructor Summary

jPrologServiceBroadcaster()

Method Summary

void	addListener(jPrologServiceListener l) Register provided listener as an interested observer to receive broadcast events.
void	broadcastEvent(jPrologServiceEvent event) Sends provided event to all registered jPrologServiceListeners.
Vector	getCachedListeners()
void	removeListener(jPrologServiceListener l) Remove specified listener from broadcast receipients (listener is no longer interested).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

listeners

protected Vector listeners

cached_listeners

protected Vector cached_listeners

Constructor Detail

jPrologServiceBroadcaster

public jPrologServiceBroadcaster()

Method Detail

addListener

public void addListener(jPrologServiceListener l)

Register provided listener as an interested observer to receive broadcast events. Events are ordered by their priority.

Parameters:

l - The listener to register.

removeListener

public void removeListener(jPrologServiceListener l)

Remove specified listener from broadcast receipients (listener is no longer interested).

Parameters:

l - The listener to remove.

broadcastEvent

public void broadcastEvent(jPrologServiceEvent event)

Sends provided event to all registered jPrologServiceListeners.

Parameters:

event - The event to send.

getCachedListeners

public Vector getCachedListeners()